BMI Calculator

Estimate body mass index from height and weight and see the general BMI category for quick personal reference.

Open BMI Calculator

What BMI can and cannot tell you

BMI is a broad screening measure based on height and weight. It does not directly measure body fat, muscle mass, fitness, pregnancy, age-related factors, or individual medical risk.

How to interpret it

Use BMI as a starting point for a general category, not as a diagnosis. Athletes, older adults, and people with unusual body composition may need a more complete assessment.

Health disclaimer

This calculator is for general information only and is not medical advice. Speak with a qualified health professional for personal health decisions.

Better context

Waist measurement, blood pressure, labs, activity level, symptoms, and family history can matter more than a single BMI number.

How to use it

1. Enter height and weight using the available units.
2. Review the BMI number and category.
3. Use the result as general context, not as a medical conclusion.

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